gecko-dev/dom/indexedDB/FileSnapshot.h

218 lines
4.6 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_dom_indexeddb_filesnapshot_h__
#define mozilla_dom_indexeddb_filesnapshot_h__
#include "mozilla/Attributes.h"
#include "mozilla/dom/File.h"
#include "nsISupports.h"
#include "nsWeakPtr.h"
#define FILEIMPLSNAPSHOT_IID \
{0x0dfc11b1, 0x75d3, 0x473b, {0x8c, 0x67, 0xb7, 0x23, 0xf4, 0x67, 0xd6, 0x73}}
class PIBlobImplSnapshot : public nsISupports
{
public:
NS_DECLARE_STATIC_IID_ACCESSOR(FILEIMPLSNAPSHOT_IID)
virtual mozilla::dom::BlobImpl*
GetBlobImpl() const = 0;
};
NS_DEFINE_STATIC_IID_ACCESSOR(PIBlobImplSnapshot, FILEIMPLSNAPSHOT_IID)
namespace mozilla {
namespace dom {
class IDBFileHandle;
namespace indexedDB {
class BlobImplSnapshot final
: public BlobImpl
, public PIBlobImplSnapshot
{
RefPtr<BlobImpl> mBlobImpl;
nsWeakPtr mFileHandle;
public:
BlobImplSnapshot(BlobImpl* aImpl,
IDBFileHandle* aFileHandle);
NS_DECL_ISUPPORTS_INHERITED
private:
BlobImplSnapshot(BlobImpl* aImpl,
nsIWeakReference* aFileHandle);
~BlobImplSnapshot();
// BlobImpl
virtual void
GetName(nsAString& aName) const override
{
mBlobImpl->GetName(aName);
}
virtual void
GetDOMPath(nsAString& aPath) const override
{
mBlobImpl->GetDOMPath(aPath);
}
virtual void
SetDOMPath(const nsAString& aPath) override
{
mBlobImpl->SetDOMPath(aPath);
}
virtual int64_t
GetLastModified(ErrorResult& aRv) override
{
return mBlobImpl->GetLastModified(aRv);
}
virtual void
SetLastModified(int64_t aLastModified) override
{
mBlobImpl->SetLastModified(aLastModified);
}
virtual void
GetMozFullPath(nsAString& aName, SystemCallerGuarantee aGuarantee,
ErrorResult& aRv) const override
{
mBlobImpl->GetMozFullPath(aName, aGuarantee, aRv);
}
virtual void
GetMozFullPathInternal(nsAString& aFileName, ErrorResult& aRv) const override
{
mBlobImpl->GetMozFullPathInternal(aFileName, aRv);
}
virtual uint64_t
GetSize(ErrorResult& aRv) override
{
return mBlobImpl->GetSize(aRv);
}
virtual void
GetType(nsAString& aType) override
{
mBlobImpl->GetType(aType);
}
size_t
GetAllocationSize() const override
{
return mBlobImpl->GetAllocationSize();
}
virtual uint64_t
GetSerialNumber() const override
{
return mBlobImpl->GetSerialNumber();
}
virtual already_AddRefed<BlobImpl>
CreateSlice(uint64_t aStart,
uint64_t aLength,
const nsAString& aContentType,
ErrorResult& aRv) override;
virtual const nsTArray<RefPtr<BlobImpl>>*
GetSubBlobImpls() const override
{
return mBlobImpl->GetSubBlobImpls();
}
virtual void
CreateInputStream(nsIInputStream** aStream,
ErrorResult& aRv) override;
virtual int64_t
GetFileId() override
{
return mBlobImpl->GetFileId();
}
virtual nsresult
GetSendInfo(nsIInputStream** aBody,
uint64_t* aContentLength,
nsACString& aContentType,
nsACString& aCharset) override
{
return mBlobImpl->GetSendInfo(aBody,
aContentLength,
aContentType,
aCharset);
}
virtual nsresult
GetMutable(bool* aMutable) const override
{
return mBlobImpl->GetMutable(aMutable);
}
virtual nsresult
SetMutable(bool aMutable) override
{
return mBlobImpl->SetMutable(aMutable);
}
virtual void
SetLazyData(const nsAString& aName,
const nsAString& aContentType,
uint64_t aLength,
int64_t aLastModifiedDate) override
{
MOZ_CRASH("This should never be called!");
}
virtual bool
IsMemoryFile() const override
{
return mBlobImpl->IsMemoryFile();
}
virtual bool
IsSizeUnknown() const override
{
return mBlobImpl->IsSizeUnknown();
}
virtual bool
IsDateUnknown() const override
{
return mBlobImpl->IsDateUnknown();
}
virtual bool
IsFile() const override
{
return mBlobImpl->IsFile();
}
virtual bool
MayBeClonedToOtherThreads() const override
{
return false;
}
// PIBlobImplSnapshot
virtual BlobImpl*
GetBlobImpl() const override;
};
} // namespace indexedDB
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_indexeddb_filesnapshot_h__